Is this game still due for more patches on Switch? Cuz....yikes...
The game was made for vanilla PS4 as a baseline and it's pushing the limits of that system. Meanwhile the Switch is a portable system with noticeably inferior specs. NRS didn't account for the platform at all and sent it to the porting team to figure out. It's like trying to fit a square peg in a round hole.
Honestly, the fact that they managed to get the game to run at 60fps during fights is a pretty big accomplishment. It sucks that the krypt is a complete mess, but I feel like the porting team can only do so much when the game very clearly wasn't designed for Switch's specs in mind.